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Rock and Mineral Table

Rock Number
 Texture
 Color
 Luster
 Fracture or Cleavage
 Rock or Mineral/Prediction
1
 Rough, slightly smooth
 White, clear
 Glassy, waxy
 Fracture
 Rock/Quartzite
2
 Smooth
 Peach, brown, and white
 Glassy
 Cleavage
 Rock/Marble
3
 Very smooth
 Black, brownish
 Glassy
 Cleavage
 Rock/Mica
4
 Rocky
 Grayish
 Earthy
 Cleavage
 Rock/Pumice
5
 Slightly rough
 Brown, black, white, red
 Metallic
 Fracture
 Rock/Granite
6
 Smooth
 Black
 Glassy
 Fracture
 Rock/Obsidian
7
 Rough
 White
 Earthy
 Fracture
 Rock/Pumice
8
 Rocky
 Multiple Colors
 Earthy
 Fracture
 Rock/Granite
9
 Flaky, rough
 White
 Earthy
 Fracture
 Rock/Unknown* sedimentary rock
10
 Smooth
 Gray-brown
 Earthy
 Cleavage
 Rock/Unknown* metamorphic rock
11
 A bit rough, smooth
 Red, white, brown
 Earthy
 Cleavage
 Mineral/Conglomerate
12
 Smooth
 Black, Gray
 Earthy
 Fracture
 Rock/Shale
13
 Rough
 Gray, brown, orange
 Earthy
 Fracture
 Rock/Unknown* sedimentary rock
14
 Gritty
 Pearly
 Pearly
 Fracture
 Mineral/Quartz
15
 Rough
 Gray, white
 Pearly
 Cleavage
 Rock/Unknown* metamorphic rock
16
 Very smooth
 Black
 Pearly
 Cleavage
 Rock/Shale

*Cannot be sure, unrecognizable.

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Rock/Mineral Pictures


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Scientific Method: Salt Crystal Experiment

  1. Problem/Purpose/Question: To understand the difference between a rock and a mineral.
  2. Hypothesis: We predict that the salt mixture will turn into salt crystals.
  3. Materials: Two plastic spoons, two pieces of duct tape, two magnifying glasses, two wooden mixers, two paper cups, hot water, table salt, rocks, and minerals.
  4. Procedure:
    1. Boil water
    2. Put table salt into water
    3. Fill half in both cups
    4. Pour water into both, each two-thirds of the spoon
      JBKR2.jpg
      Water fills up 2/3 of the spoon's capacity.
    5. Let mixture sit for one day
    6. Examine spoon the next day
  5. Data/Observation: The salt crystals were in the spoon.
    JBKR.jpg
    How the salt the finished experiment looks like.
    Though they were not a perfect square, they resembled salt crystals.
  6. CER (Claim, Evidence, Reasoning): Claim: The salt was not visible in the mixture, but was in it. Evidence: The salt dissolved into the water, making a mixture. Reasoning: The salt dissolved into the water, so it could not become into a different substance. This was visible through the salt crystals, because the water evaporated and the salt was reformed and left behind.

Link to Our Voicethread Page Page

We are making a VoiceThread about rock cycle. Please view what we have so far...

Here is our VoiceThread:



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This visitor count is from 3/29/08 10:56 (PST).

Notice

Even though that now our seating chart had changed and we are separated, we might still continue doing the voicethread and other things on this site.
Thank you for your cooperation and time.
JBKR crew
This notice was posted on 6:51 P.M. of 4/3/08.
(The time is in PST UTC-8)